Home / 152,402.49-210,339.51-91,981.75

Finding the Fourth Proportional to 152,402.49, 210,339.51 and 91,981.75

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Solution

The fourth proportional to 152,402.49, 210,339.51 and 91,981.75 is: 126,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,402.49 : 210,339.51 = 91,981.75 : x
  2. Step 2: Convert to fraction form
    152,402.49/210,339.51 = 91,981.75/x
  3. Step 3: Cross multiply
    152,402.49x = 210,339.51 × 91,981.75
  4. Step 4: Simplify right side
    152,402.49x = 19,347,396,223.94
  5. Step 5: Solve for x
    x = 19,347,396,223.94/152,402.49
  6. Step 6: Final answer
    x = 126,949.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.